Carlos Cardenas has been working on porting a program from Linux that is CPU bound. He found some hotspots using DTrace. He asked someone what else he could do to maximize performance and was asked in turn if the program was cache friendly. Carlos went on to ask if I could provide some insight into the cpc provider in DTrace. I'll do that, concentrating on examining cache utilization.

For the past few weeks, I have been studying performance of an application that uses MongoDB, Node.js, and jmeter. The application was written by a third party, and they set up the application so that each component runs in its own Smart Machine.

Video is now the king of content. However, there’s not enough time to watch a video. 4-minute videos can make us squirm in our chairs or reach for our smartphone to check email. Even if you have not heard of ReelSurfer, you probably have watched a mash-up or one of its viral videos. ReelSurfer is a free online service that lets anyone clip and share any video from any website.

When your friends and family come to you with the flood of technology questions you’ve come accept as an occupational hazard, you know how to ask the critical, mission-saving questions such as, “is it plugged in” and “have you tried turning it on?”

Watch it Wednesdays are hand-picked videos from our Joyent engineers who have given talks in the past on a variety of open-source offerings. These videos have been selected for their ability to shed light on some of the most relevant, pressing topics in today’s developer community.

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